(Corrects second paragraph to say offer at a 28 percent premium, not 36.6 percent)
Oct 16 (Reuters) - The world's biggest miner BHP BHP.AX on Tuesday said it entered a share subscription agreement with copper-gold explorer SolGold Plc SOLG.L , under which SolGold will issue a 100 million shares to the company.
BHP has agreed to pay 45 pence per SolGold share, which is at a 28 percent premium to the stock's close on Monday.